Analysis of Pantograph Key Parameters Suitable for 200 km/h Train Overhead Rigid Catenary

Abstract

Objective The compatibility between the ORC (overhead rigid catenary) and the pantograph directly affects the current collection performance of the PC (pantograph-catenary) system. As the train operational speed levels applicable for the ORC gradually increase, it is necessary to carry out research on the selection of high-speed pantograph types that match the ORC. Method Based on finite element analysis method, an ORC-pantograph coupled simulation model is established. Key parameters of the pantograph suitable for ORC with a train operating speed of 200 km/h are analyzed. Using the orthogonal experimental design, the simultaneous variations in pantograph multiple structural parameters on PC dynamic performance are studied. Result & Conclusion The relative optimal values for single parameter change are as follows: the pantograph head equivalent mass is 6.4 kg, the lower frame equivalent mass is 6.6 kg, the lower arm equivalent stiffness is 10 N/m, the pantograph head equivalent damping is 40 to 60 N·s/m, and the lower arm equivalent damping is 130N·s/m. The change in pantograph head equivalent mass has the greatest impact on PC dynamic response, followed by pantograph head equivalent stiffness, pantograph head, and upper frame equivalent damping, while the impact of lower arm equivalent mass is the smallest. The obtained optimal pantograph combination parameters suitable for ORC with a train operating speed of 200 km/h are pantograph head equivalent mass of 5.7 kg, lower arm equivalent mass of 4.6 kg, pantograph head equivalent stiffness of 10 373 N/m, pantograph head equivalent damping of 60 N·s/m, and upper frame equivalent damping of 40 N·s/m.

Keywords

• metro
• rigid catenary
• pantograph